Select query not working on Server: Laravel 5.2

Enumeration

class RoleListKeyEnum {
    const Role_List_Page_Title = 1;
}

My code is below

$Translation_Dictionary->where('KeyID', KeyEnum::Role_List_Page_Title)->first()

Above Code works perfectly on localhost and gives a record.

same code does not work on server but surprisingly work if I write below code.

$Translation_Dictionary->where('KeyID', strval(KeyEnum::Role_List_Page_Title))->first()

KeyID is integer in database

Can somebody tell why do I need to convert it into String to get the results on server?

via Chebli Mohamed